This very handy holding tool has been specially manufactured for Yambits. As most attempts to undo clutch nuts without the correct tools usually causes expensive damage... is it worth the risk? Suits:

DT125R 1988-2003

DT125RE 2004-2007

DT125X 2005-2006

FZR400 & RR 1986-1992

FZR600 1989-1993

TDR125 1989-2003

TDR125L 1987-1992

TDR125R & RR 1993-1995

YZ80 1981-2001

YZ85 2002-2011